Mining-pick



No. 748,901. I PATENTED JAN.5,1904. G. T. WHITE. MINING PICK.

TION FILED APE.

UNITED STATES Patented January 5, 1904.

GEORGE T. WHITE, OF OOLFAX, IOWA.

MINING-PICK.

SPECIFICATION forming part of Letters Patent No. 748,901, dated January 5, 1904.

Application filed April 18. 1903.

To all whom it may concern.-

Be it known that I, GEORGE T. WHITE, a citizen of the-United States, residing at (Jolfax, in the county of Jasper and State of Iowa, havein vented anew and useful Improvement in Mining-Picks, of which the following is a specification.

The object of my invention is to provide a mining-pick of simple, strong and durable, and inexpensive construction in which the pick-head may be easily and quickly attached or detached from the socket for purposes of sharpening or replacing.

Another object is to provide asocket which when driven on the handle will so wedge itself as to prevent its becoming detached therefrom by the ordinary use.

My invention consists of certain details of construction hereinafter set forth, pointed out in my claim, and illustrated in the accompanying drawings, in which Figure 1 shows a sectional view of my improved pick, the various parts being disconnected, but arranged in the order in which they would be joined; and Fig. 2 shows a sectional view of my pick, the parts being joined.

Referring to the accompanying drawings, the reference-numeral 10 is used to indicate a pick-head, a portion of the under surface being removed.

The numerals 11 and 12 indicate the sides of the depression caused by the removal of a portion of the under surface, said sides being at right angles to the lower surface of the head 10.

The numeral 18 indicates an outwardly-inclined slot extending upwardly from the under surface of the pick-head l0, and the numera111 indicates an inclined channel extending outwardly and upwardly from the under surface through the pick-head 10, said channel 14 being inclined reversely to the incline of the slot 13.

The numeral 15 indicates the socket, being larger at its top than at the bottom and provided with flat surfaces 16 and 16 on each side at the points where it is designed to fit into the removed portion of the under surface of the pick-head 10.

The numeral 17 indicates an outwardly-inclined shank mounted on the top surface of the socket 15 and designed to be received by Serial No. 153.268. (No model.)

the slot 13 when the head is placed in position outhe socket.

The numeral 18 indicates an internallyscrew threaded opening extending downwardly on an inclined plane from the top surface of the socket 15 and designed to form a continuation of the channel 14 when the head 10 is placed in position on the socket 15.

The numeral 19 indicates the opening in the under surface of the socket 15, in which a handle 20 is designed to be secured. Located centrally in the top surface of the opening 19 is a downwardly-extending wedge 21, tapering to a sharp point at its lower extremity.

The numeral 22 indicates a set-screw having an elongated cylindrical head 23 and is inserted into the slot 13 and the head 10 forced downwardly onto the socket 15, the head of the socket 15 fitting into the removed portion in the under surface of the pick-head 10 and the flat surfaces 16 and 16 fitting flush with the sides 11 and 12. The set-screw 22 is then passed through the channel 14 in the head 10 and screwed into the opening 18 in the socket 15, the elongated head 23 fitting in the channel 14. This set-screw is designed to be of such a length as will provide for countel-sinking the elongated head 23 in the channel 14.

Having thus described my invention, what I claim, and desire to secure by Letters Patent of the United States, is

In a mining-pick the com bination of a pickhead 10 containing, in its under surface, a depression having right-angular sides 11 and 12, an inclined slot 13, extending upwardly and outwardly from its under surface, an inclined channel 14 extending from the upper to the lower surfaces and inclined reversely to the plane of slot 13; a socket 15, having of the opening 19 and extending downwardly therefrom; a set-screw, all arranged and com- :o bined for the purposes stated.

GEO. T. WHITE.

Witnesses:

EVERET M. ALLEN, GEO. SAGE. 

